ARM: dts: r7s9210: Add RIIC support

Add I2C support for the R7S9210 (RZ/A2) SoC.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r7s9210.dtsi

@@ -216,6 +216,82 @@ ether1: ethernet@e8204200 {
 			status = "disabled";
 		};
 
+		i2c0: i2c@e803a000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "renesas,riic-r7s9210", "renesas,riic-rz";
+			reg = <0xe803a000 0x44>;
+			interrupts = <GIC_SPI 232 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 233 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 234 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 235 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 236 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 237 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 239 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 87>;
+			power-domains = <&cpg>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
+		i2c1: i2c@e803a400 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "renesas,riic-r7s9210", "renesas,riic-rz";
+			reg = <0xe803a400 0x44>;
+			interrupts = <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 241 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 242 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 244 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 245 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 246 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 86>;
+			power-domains = <&cpg>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
+		i2c2: i2c@e803a800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "renesas,riic-r7s9210", "renesas,riic-rz";
+			reg = <0xe803a800 0x44>;
+			interrupts = <GIC_SPI 248 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 249 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 250 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 251 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 253 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 254 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 255 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 85>;
+			power-domains = <&cpg>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
+		i2c3: i2c@e803ac00 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "renesas,riic-r7s9210", "renesas,riic-rz";
+			reg = <0xe803ac00 0x44>;
+			interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 257 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 258 IRQ_TYPE_EDGE_RISING>,
+				     <GIC_SPI 259 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 260 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 261 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 262 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 263 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 84>;
+			power-domains = <&cpg>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
 		ostm0: timer@e803b000 {
 			compatible = "renesas,r7s9210-ostm", "renesas,ostm";
 			reg = <0xe803b000 0x30>;